应用材料（AMAT）今日夜盘股价大跌5.07%，引发市场广泛关注。
消息面上，知名"大空头"迈克尔·伯里此前公开披露对应用材料的空头仓位，并持续加码做空AI及半导体板块，预计相关芯片股整体可能出现约30%的调整，该消息持续发酵令市场承压。此外，市场对AI基础设施巨额支出能否产生回报的疑虑升温，叠加中国光刻机竞争担忧，费城半导体指数较6月历史高点已下跌逾20%，半导体设备板块整体持续走弱。
值得关注的是，此前汇丰、花旗、瑞银等机构密集上调应用材料目标价至683至705美元区间，但短期空头情绪仍主导市场走势。
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